16420255 has 8 divisors (see below), whose sum is σ = 19974672. Its totient is φ = 12955968.

The previous prime is 16420253. The next prime is 16420259. The reversal of 16420255 is 55202461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16420255 - 2¹ = 16420253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16420253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22129 + ... + 22858.

It is an arithmetic number, because the mean of its divisors is an integer number (2496834).

Almost surely, 2^16420255 is an apocalyptic number.

16420255 is a deficient number, since it is larger than the sum of its proper divisors (3554417).

16420255 is an equidigital number, since it uses as much as digits as its factorization.

16420255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45065.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 16420255 is about 4052.1913824497. The cubic root of 16420255 is about 254.1713715275.

The spelling of 16420255 in words is "sixteen million, four hundred twenty thousand, two hundred fifty-five".